6450.6bĆa
1999
Pin Assignments (M Versions)
03/00
BM
BMW
BMW
BMW
Z3
E = Input, A = Output, M = Ground
X18349
8 Pins, black
X18350
6 Pins, black
X18349
Pin
Type
Description/Function
Connection
1
M
Ground
Ground point
2
A
A/C-ON-signal
Evaporator controller
3
A
A/C-ON-signal
Normal speed relay
4
E
Terminal 15
Heating blower relay
5
A
Blower level 1 (air-recirculation)
Blower resistor
6
M
Ground for function lights
Ground point
7
E
Terminal 15
Heating blower relay
8
A
Activate fresh air-recirculation
Fresh air-recirculation motor
X18350
Pin
Type
Description/Function
Connection
1
Not used
2
M
Ground
Ground point
3
E
Climate-ON-signal
Air conditioning/recirculated air operating
unit
4
Not used
5
A
Activate A/C compressor
Pressure switch
6
E
Evaporator temperature
Evaporator temperature sensor